Q: What are the prime factors of the number 380,864?

 A: 2, 11, 541

Why are those the prime factors of the number 380,864?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 380,864

380,864
Factor Arrows
2190,432
Factor Arrows
295,216
Factor Arrows
247,608
Factor Arrows
223,804
Factor Arrows
211,902
Factor Arrows
25,951
Factor Arrows
11541

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 11, 541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 11 x 541 = 380,864

This can also be written as 26 x 111 x 5411 = 380,864

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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